11649776863 has 4 divisors (see below), whose sum is σ = 11674723320. Its totient is φ = 11624830408.

The previous prime is 11649776857. The next prime is 11649776867. The reversal of 11649776863 is 36867794611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11649776863 - 2⁹ = 11649776351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11649776798 and 11649776807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11649776867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12472528 + ... + 12473461.

It is an arithmetic number, because the mean of its divisors is an integer number (2918680830).

Almost surely, 2^11649776863 is an apocalyptic number.

11649776863 is a deficient number, since it is larger than the sum of its proper divisors (24946457).

11649776863 is an equidigital number, since it uses as much as digits as its factorization.

11649776863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24946456.

The product of its digits is 9144576, while the sum is 58.

The spelling of 11649776863 in words is "eleven billion, six hundred forty-nine million, seven hundred seventy-six thousand, eight hundred sixty-three".